# tmux_model:observation/0

- **Package:** libtmux_erlang
- **Language:** Erlang
- **Kind:** typealias
- **Source:** https://github.com/libtmux/libtmux-erlang/blob/d1b6308440cf9eb8f6647e7ae434bce60e849368/apps/libtmux_erlang/src/tmux_model.erl#L46
- **Page:** https://libtmux.org/en/erlang/latest/reference/t-tmux_model-observation-0/

```
-opaque observation().
```

Private captured target association, created by observation. Retain with its row; construction and field access are internal. It is not an authorization or serialization format.